嗨，我正在使用模拟器来测试应用程序，但是当我运行应用程序时，它仍然显示 gprs 可用，知道为什么吗？在模拟器中没有 gprs 那么为什么它的显示 gprs 可用？ConnectivityManager.TYPE_MOBILE 是什么意思？是指只有gprs？？
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
sp.setAdapter(adapter);
sp.setOnItemSelectedListener(new OnItemSelectedListener() {
public void onItemSelected(AdapterView<?> parent, View view, int position, long
id) {
if (position == 0)
{
final ConnectivityManager connMgr = (ConnectivityManager)
getSystemService(Context.CONNECTIVITY_SERVICE);
android.net.NetworkInfo mobile =
connMgr.getNetworkInfo(ConnectivityManager.TYPE_MOBILE);
if( mobile.isAvailable() ){
Toast.makeText(LoginScreen.this, " GPRS Connection Found "
, Toast.LENGTH_LONG).show();
}
else if( !mobile.isAvailable() ){
Toast.makeText(LoginScreen.this, "No GPRS
Connection Found " , Toast.LENGTH_LONG).show();
}
}
if (position == 1)
{
final ConnectivityManager connMgr = (ConnectivityManager)
getSystemService(Context.CONNECTIVITY_SERVICE);
final android.net.NetworkInfo wifi =
connMgr.getNetworkInfo(ConnectivityManager.TYPE_WIFI);
if( wifi.isAvailable() ){
Toast.makeText(LoginScreen.this, " Wifi Found" ,
Toast.LENGTH_LONG).show();
}
else if( !wifi.isAvailable() ){
Toast.makeText(LoginScreen.this, "No Wifi found " ,
Toast.LENGTH_LONG).show();
}
}
if (position == 3)
{
final ConnectivityManager connMgr = (ConnectivityManager)
getSystemService(Context.CONNECTIVITY_SERVICE);
BluetoothAdapter mBluetoothAdapter =
BluetoothAdapter.getDefaultAdapter();
if (mBluetoothAdapter.isEnabled()) {
Toast.makeText(LoginScreen.this, " BlueTooth Found" ,
Toast.LENGTH_LONG).show();
}else if( !mBluetoothAdapter.isEnabled() ){
Toast.makeText(LoginScreen.this, "No BlueTooth found "
, Toast.LENGTH_LONG).show();
}
}
}
public void onNothingSelected(AdapterView<?> arg0) {
}
});